Headrest cover unit for dental chairs



Sept. 4, 1951 1. E. ROTNER HEADREST COVER UNIT FOR DENTAL CHAIRS Filed April 8, 1950 INVENTOR W 0% 0 6% Wm m ATTORNEYS Patented Sept. 4, 1951 OFFICE HEADREST COVER UNIT FOR DENTAL CHAIRS Irving E. Rotner, Spring Valley, N. Y.

Application April 8, 1950, Serial No. 15 L765 (Cl. 155l76) 3 Claims.

This invention relates to improvements in head rest cover units for dental chairs, etc., of the pad of separable sheets type shown in my U. S. Patent No. 2,068,571, dated January 19, 1937.

Its principal object is to provide a separable sheet cover unit for head rests of dental, barber chairs, etc., which will always lie flat and undistorted against the head rest.

Its principal feature of construction over my said U. S. Patent No. 2,068,571 resides in the backing portion of the unit, whereby buckling of the separable sheet is avoided.

I Other objects of the invention will be apparent from the following description and drawing, which describes and illustrates a preferred, practical embodiment of the invention.

In the drawing:

Fig. 1 is a rear perspective view of a pair of head rests of a dental chair, with the improved pad unit mounted thereon;

Fig. 2 is a sectional view on the line 2-2 of Fig. 1;

Fig. 3 is a plan view of the back of the pad unit;

Fig. 4 is a plan view of the front of the unit;

Fig. 5 is a sectional view on the line 5-5 of Fig. 3; and,

Fig. 6 is a plan view of the back of a single section pad unit.

Referring to the drawing, the base of the unit consists of a flexible backing II of the configure.- tion shown in Fig. 3. The said backing may be made from rubber, cloth, vinyl film, or any desired flexible material, and is die-cut to present two complementary circular sections II and I2, integral with each other along their common connecting arm I3; each said section having a centrally located oval head rest receiving opening I4, and a plurality of spaced and inwardly extending peripheral cut-outs I5. The said outout portions l5 are in alined relationship, and each is of arcuate shape. As shown in Fig. 3, each head rest section II] and II has an upper and lower cut-out and an end cut-out. The upper and lower cut-outs of each section being in vertical alinement and the end cut-out of each section being in horizontal alinement. Backing H) can be of any desired configuration and size as long as it is divided into two sections,

one section being foldable with respect to the adjacent section.

Superposed on backing I0 is the flexible sheet I 6, the said sheet being generally of the same configuration as backing I0, save it has no cutout portions. Sheet I5 is stitched to backing I0 adjacent their marginal edges by the stitching I'I. When so stitched, the sheets I0 and I6 form two pockets or compartments A and B therebetween. Access is had to each said pocket through opening I4, and each said section is adapted to receive a head rest ection H therein through said openings.

Sheet I 5 is provided with a projecting tab portion I8, the function of which will hereinafter be explained. Said sheet can be made of cloth, rubber, vinyl sheeting or any other desired flexible material. It is die-cut to the configuration shown in Fig. 3, and save for the cut-out portions M and I6 of backing sheet I0, it is otherwise identical to said backing sheet I0. Like backing sheet In, said sheet I6 is divided into two circular sections which are. foldable relative. to each other along an integral connecting arm.

Superposed on intermediate sheet I6 area plurality of separable sheets I9 of grease proof and oil-proof paper. The said sheets I9 conform in every respect to the configuration of sheet I6, being also provided with a projecting tab portion 20 overlying tab portion I8 of said sheet I6.

Sheets I9 are held in superposed assembled relation as a pad unit, with backing sheet II! and intermediate sheet I6 by a plurality of staples 2| passing through said sheets I9 and said intermediate sheet IB. Such connection can be by staple, hand loops or by stitching by machine. It will be noted from Fig. 3 that each staple 2| is located in each cut-out portion I5 of backing sheet ID. The topmost sheet I9 oi the pad unit can be removed after usage to present a clean sheet I9 when desired. This is accomplished by pulling tab 20 of each sheet I9 upwardly and then tearing the sheet from staples 2|.

Figs. 1 and 2 show the pad unit mounted on the head rest H. Each opening I4 is of sufficient dimension so as to permit the insertion of each head rest I-I therethrough, so as to be held in each respective pocket or compartment A and B. It will be noted that cut-out portions I5 communicate with each said pocket.

It will be observed from Figs. 1 and 2 that head rests H are disposed in angular relation to each other. Consequently, when the pad unit is mounted on said head rests, the two sections of the unit will likewise assume an angular position, as the said sections are readily foldable with respect to each other along their integral connecting arm.

Each section of the pad unit will lie flat against its respective head rest H, and the presented sheets [9 thereof will not be bent or distorted. There is no tension on the said sheets, by reason of the improved backing construction. This is strikingly illustrated in Fig. 1 wherein it will be discerned that the tension and pull is confined to backing sheet l and its associated sheet I 6. The provision of. the. spaced peripheral cut-outs I5 enables portions of said backing sheet I0 to pull away from its associated sheet I6. The buckling and distortion are thus confined to the backing section. The points of greatest stress or pull are at the staple points 2 I, wholly located in each cutout l5.

Fig. 6 shows a single section pad unit, which can be slipped over each head rest H individually. The backing of this unit is provided with four cut-outs, otherwise this embodiment is identical to the construction heretofore described, save that the connecting arm has been omitted.

There has been illustrated and described; a preferred. embodiment of the invention. It. is not desired to be limited to any specific configuration or size or. material. Ifdesired', intermediate sheet l6 may bedispensed with.

What isclaimed is:

1. A pad unit for a sectional headrestcompris ing. a. backing sheet, an intermediate sheet and a plurality of separable sheets, all saidzsheets being cut to, present two complementary sections integral; with an intermediate. arm, all said sheets being. foldable along said intermediate arm, the backing sheet having a centrally located headrest receiving opening formedlin each section thereof.

and also having a plurality of marginal cut-outs formed in. each said section, the intermediate sheet being superposed on said backing sheet and being stitched thereto adjacent the marginal edgesofjsaidsheets to form. a pair of compartments therebetween, each of, said compartments being adapted to receive and hold therein a headrest, the plurality of separable sheets being superposed on said intermediate sheet and being detachably secured thereto adjacent the marginal cut-outs, the tension being on said intermediate and backing sheets when the unit is mounted on the headrest.

2. A pad unit for a sectional head rest in accordance with claim 1, in which each section of the backing sheet is provided with three marginal cut-outs, an upper and lower cut-out and an end cut-out, the upper and lower cut-outs of each section being in vertical alinement, and the end cut-out of each section being in vertical alinement with each other.

3. A pad unit for a sectional headrest comprising a backing'section having two laminae, one of said laminae having an opening therein to receive a headrest and also having a plurality of marginal cut-outs formed therein, a plurality of separable sheets superposed and detachably secured,

to'the otherofthe'said laminae" adjacent thesaid marginal cut-outs-,,the tension being on the-said backing section when the unit is mounted on the headrest.

IRVING E. REFERENCES CITED;

The following referencesa-re. of recordv in. the file of this patent:

UNITED STATES PATENTS Germany Oct; 1.7;1927 

